Binder for coils of rotating elements.



No. 792,568. PATENTED JUNE 13, 1905. B. A. BEHREND. BINDER FOR COILS 0P ROTATING ELEMENTS.

APPLICATION FILED NOV. 6. 1903.

[71 Dental mzneases Bern an? A- .Beizrerzd 7 W W C Attorn ey UNITED STATES Patented June 13', 1905.

PATENT OFFICE.

BERNARD A. BET-TRENT), OF NORWOOD, OHIO, ASSIGNOR, BY MESNE AS- SIGNMENTS, TO OF OHIO.

THE BULLOCK ELECTRIC COMPANY, A CORPORATION BINDER FOR COILS OF ROTATING ELEMENTS.

SPECIFICATION forming part of Letters Patent No. 792,568, dated June 13, 1905.

Application filed November 6,1903. Serial No. 180,037.

1'0 (LN whom it may concern.-

Be it known that I, BERNARD A. BEHREND, a citizen of the United States, residing at Norwood, inthe county of Hamilton and State of 5 Ohio, have invented certain new and useful Improvements in Binders for Coils of Rotating Elements, of which the following is a full, clear, and exact specification.

My invention relates to dynamo-electric IO machines, and particularly to means for securing the end connections of windings of a revolving element in place.

The objects of my invention. are to provide a construction adapted for very large units 1 5 which may permit the parts to be readily assembled, overcome any possibility of the parts working loose, permit access to a few of the windings without disturbing the remainder, and to secure simplicity in construction.

Prior to my invention bands have been used which encircle all the conductors. construction, although suitable for small machines, is not desirable for large units.

By my invention 1 provide an end head to z 5 support the end connections and use a number of clamps or binders on the outside of the end connections, which clamps or binders are secured to the end heads.

The details of my invention will be understood by reference to the following description and accom p an ying drawings, which show the preferred form of construction, and the novelty thereof will be set forth in the appended claims.

Figure 1 is a sectional view of a portion of the revolving element. Fig. 2 is a development of the core and windings, showing the clamps or binders in plan view. Fig. 3 is an enlarged plan view of one of the clamps. 40 Figs. 4' and 5 are side and end views of the clamp.

The laminated core of the rotating element is indicated at 1 and has the customary ventilating-spaces 2. The end heads 3 are 5 built up of segments bolted end to end by bolts 4. The end heads clamp the laminated The This

windings 5 lie in slots between the teeth 6 of the core and are retained in place by wedges 7 between the teeth. The machine illustrated is a direct-current machine, the rear l end connections being shown at 8 and the front connections to the commutator at 9, and the commutator-heads being indicated at 10. The end connections, which are all similarly inclined, as shown in Fig. 2, extend over and rest upon the end heads, hearing at their outer ends on the shelves 11. Suitable insulation 12 is interposed between the end connections and the shelves 11. The clamp 13, preferably made of brass, is formed of a main portion 14, which extends over the end connections and across the end head and is provided with side extensions 15. Ribs 16 are formed. on the parts 14 and 15 to give additional strength. The clamps are placed near each other around the periphery, as shown in Fig. 2. A screw 17 passes through each end of the end head, as shown in Fig. 1, and thereby securely retains the end connections in place. A wire 18 extends the length of the clamp, resting in a notch 19 of the cen tral rib and passing through small holes at 20 in the two cross-ribs 16. The ends of the wire lie in. the slots in the heads of the screws, and so overcome any possibility of the screws working loose. The wire is soldered in place at -the notch 19. It will be noted that the outer ends of the clamps for securing the rear end connections in place are curved to conform to the shape of the windings.

It is apparent from the foregoing descrip tion. that the parts may be easily assembled, and access to any part of the winding may be obtained by removing only a few of the clamps.

My invention may evidently be embodied in various forms of clamps, and the means for securing them in place may be modified without departing from the spirit of my invention.

I claim as my invention 1. In a dynamo-electric machine, a core, an end head, windings on the core, the end connections of which are all similarly inclined and are supported on the end head, and independent cross-pieces each of which extend over a plurality of said inclined end connections, said cross-pieces being secured to the end head, substantially as described.

2. In a dynamo-electric machine, the combination of a core, an end head, and windings on the core, said windings having end connections supported on the end head, and a number of cross-pieces extending over the end connections and across the end head and secured thereto, said cross pieces being formed of a main portion and having arms at right angles to said main portion.

3. In a dynamo-electric machine, the com bination of a core, an end head, windings on the core, said windings having end connections supported on the end head, and clamps extending over the end connections and secured to the end head, said clamps formed of a main portion extending parallel with the axis of the machine.

. 4. In a dynamo-electric machine, the combination of a core, an end head, windings on the core, said windings having end connections supported on the end head, and clamps extending over the end connections and secured to the end head, said clamps formed of a main central portion and extensions projecting sidewise therefrom.

5. In a dynamo-electric machine, the combination of a core, an end head, windings on the core, said windings having end connections supported on the end head, independent cross-pieces extending over the end connections and each comprising a main central portion and extensions projecting sidewise therefrom, and fastening means for said cross-pieces secured to the end head.

6. In a dynamo electric machine, a core, an end head, windings on the core, the end connections of which are all similarly inclined and are supported on the end head, and independent cross-pieces each of which extend over a plurality of said inclined end connections, and fastening means at the ends of said cross-pieces which engage the end head.

In testimony whereof I aflix my signature in presence of two witnesses.

BERNARD A. BEHREND.

Witnesses:

L. K. SAGER, SANFORD KLEIN. 

